Willis mitchell



(No Model.)

W. MITCHELL. ELEGTRIGALLY HEATBD WRISTBAND IRONBR.

Patent-ed Sept. 8,1891.

...Immun 1M .diorney UNITED STATES PATENT CEEICE.

VILLIS MITCHELL, OF MALDEN, MASSACIIIISETTS, ASSIGNOR TO THE BUTTERFIELD-MITCHELL ELECTRIC HEATING COMPANY.

ELECTRICALLY-HEATED WRlSTBAND-IRONER.

SPECIFICATION forming part of Letters Patent No. 459,070, dated September 8, 1891.

Application filed November 29, 1890. Serial No. 373.036. (No model.)

To all whom it may concern.-

Be it known that I, WILLIS MITCHELL, a citizen of the United States, residing at Malden, in the county of Middlesex and State of Massachusetts,haveinvented certain newand useful Improvements in Electrically-Heated Tristband-Ironers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for ironing Wristbands and other articles of the kind employing` a rotary cylinder, in combination with a stationary device for heating and pressing the article to be laundered.

The said invention consists, chiefly, in the combination of a fixed heating-plate having a stem with a coiled wire, and its inclosing casingr sleeved on said stem and support-edby said plate, the said wire forming part of an electric circuit and heating said plate.

In the accompanying drawings, Figure 'l represents a perspective viewof a machine embodying my invention. Fig. 2 represents a detail view, in side elevation, of one of the heating-plates and its stem. Fig. 3 represents a similar view of the said plate and stem and the heating devices surrounding the latter. Fig. 4. represents a similar view of the casing for said wire. Fig. 5 represents an enlarged perspective detail View of the stem of said plate broken away with the first winding of wire thereon, and Fig. tl repre sents a detail cross-section through the heater.

A designates the base or bed plate of the machine; B, the frame thereof; C, the driving-wheel turning with a short driving-shaft D, mounted in Said frame 5 E, two pinions on said shaft at opposite sides of said drivingwheel, and F two gear-wheels meshing, respectively, with said pinions. Each of these wheels F is on a shaft G, also mountedin said frame, and carrying a Wristband supporting and smoothing cylinder H. The two shafts G and their cylinders are counterparts, as are also the iixed heating devices, hereinafter described. The foregoing devices are old and need no further description.

Above each cylinder is a flat plate I on a rigid bent arm J, extending from the side of frame A. A 'short stem K extends upward from the middle of said plate. A wire L, forming part of au electric circuit and coated with insulating material or otherwise insulated, is wound in successive layers around this stem, the first winding of said wire being directly on said stem, as shown in Fig. 5,and each successive winding being upon interposed separating-strips Il, preferably of asbestus, these strips being arranged in successive layers, so that the heating device as a whole has the form of a drum, as shown in Fig. 3, and consists of concentric helices of continuous wire separated by said strips and surroundin g the said stem asa core. Atubular casing or sleeve M rests on the said plate surrounding and protecting the said wire. The current sent through the said wire gencrates heat in said casing and stem, especially the latter, and this is communicated by conduction to the plate I. The garment or fabric passing between the cylinder II and the said plate is heated and smoothed by the lower face of the latter, while the upper face of said plate receives and supports the wire and casing aforesaid.

A machine such as described is arranged for ironing two articles at once; but this of course is quite immaterial, and the same devices may be used in. a machine for ironing one article only at a time. plate, with or without the casing, may also be used for general caloric purposes without the cylinder and the other devices hereinbefore described. The stem K, though very advantageous, is not absolutely necessary.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In combination with a cylinder and mechanism for rotating the same, a fixed plate provided with a stem and arranged in prox imity to said cylinder, and an electric heatm ing device consisting of a Wire forming part of an electric circuit and woundin successive concentric helices about the said stem, insulating strips or layers being interposed ben tween said helices, substantially as set forth.

2. In a smoothiugmachine, the combination ol' a fiat plate I, having a stem K on the side away from that which applies the heat,

The wire stem and' With a heating-drum surrounding the said layers ot' strips of insulating material, and a stem and. composed of alternating layers of removable cap M, inolosing the said heater Wire and insulating material, the Wire being and resting on the said plate, substantially continuous and forming part of an eleetrie as set forth.

5 circuit, substantially as set forth. In testimony whereof I atiix my signature in 15 3. In combination with plate I, having stem presence of two Witnesses. K on its upper side, a heating-drum composed vWILLIS MITCHELL. of a continuous wire forming part of au elec- Witnesses: tric circuit and Wound in helices first about L. L. PARSONS,

1o the said stem and afterward about suceessive lV. P. CUTLER. 

